Android Firefox problem with singleTop launch mode

[khspn]

Hey there!

In our application we use this package for authorization and we're facing some problems when phone's default browser is set to any variation of Firefox.

Auth works flawlessly with every other available browser (even with Tor!), but with Firefox, on redirect, browser closes correctly but our application doesn't receive the token and it's treated like a canceled log in attempt.

It seems like Firefox and our application don't communicate or that the auth procedure isn't able to catch data Firefox sends back after redirect.

This only occurs when launchMode from AndroidManifest is set to 'singleTop'.

With 'singleTask', Firefox works but having 'singleTop' for launchMode is important to us because one of the requirements for the app is to be able to continue the sign in process where you left of by clicking the icon on home screen (if the app hasn't been swiped from recent apps), and with 'singleTask' clicking the icon closes the browser.

The app is built using RN 0.74.2, we're not using Expo or any other framework.

Any idea on how we can approach this? Is this a known error that will be fixed in the future?

Thanks in advance!